Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: BS EN 12697-12-TC:2020
• Năm ban hành / Publication date: 2020
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Tracked Changes (Redline) - Bituminous mixtures - Test methods Part 12: Determination of the water sensitivity of bituminous specimens
• Chỉ số phân loại Quốc tế (ICS) / By field: 93.080.20 - Hè đường
• Số trang / Page: 58

Phạm vi áp dụng / Scope of standard

This European Standard specifies three test methods for determining the effect of saturation and accelerated water conditioning:

- method A uses the indirect tensile strength of cylindrical specimens of bituminous mixtures;

- method B uses the compression strength of cylindrical specimens of bituminous mixtures;

- method C defines the bonding value for a bituminous mixture 1 h after mixing, where the bonding of bitumen and aggregate can be equated to a bonding value.

Method C is suitable for soft asphalt with bitumen of kinematic viscosity at 60 °C of 4 000 mm2/s or less.

These methods can be used to evaluate the effect of water on asphalt mixtures with or without antistripping additives including liquids, such as amines; and fillers, such as hydrated lime or cement.